CN111232170A - Underwater pressure balancing device based on magneto-rheological effect - Google Patents
Underwater pressure balancing device based on magneto-rheological effect Download PDFInfo
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- CN111232170A CN111232170A CN202010172997.4A CN202010172997A CN111232170A CN 111232170 A CN111232170 A CN 111232170A CN 202010172997 A CN202010172997 A CN 202010172997A CN 111232170 A CN111232170 A CN 111232170A
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- sealing ring
- balancing device
- pressure balancing
- shell
- underwater pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/14—Control of attitude or depth
- B63G8/26—Trimming equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
- H01F1/447—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids characterised by magnetoviscosity, e.g. magnetorheological, magnetothixotropic, magnetodilatant liquids
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to an underwater pressure balancing device based on a magneto-rheological effect. The pressure balancing device is mainly used for balancing the pressure of seawater according to oil liquid and magnetorheological fluid in the pressure balancing device, and mainly comprises an upper shell, a screw, a current controller, a protective sleeve, a lower shell, a bolt, a first nut, a piston rod, a second sealing ring, the magnetorheological fluid, an excitation coil, a power-on lead, a first sealing ring, a pressing plate, a rolling diaphragm, the oil liquid, the second nut, a middle shell, an inner shell, a third sealing ring and a fourth sealing ring. The underwater pressure balancing device based on the magneto-rheological effect has the characteristics of long service life, quick response, strong adaptability of working environment, long-term reuse and the like, solves the problems of weak adaptability of the underwater pressure balancing device on the market to the working environment, short service life and the like, and improves the universality of the underwater pressure balancing device.
Description
Technical Field
The invention relates to a pressure balancing device, in particular to an underwater pressure balancing device based on a magneto-rheological effect.
Background
The ocean accounts for about 71% of the earth's surface area, with an average water depth of about 3795 meters. So far, only 5% of the sea floors that have been explored by humans, and 95% of the sea floors are unknown, and therefore, the development of oceans is imperative. In recent years, with the exploration and development of oceans by human beings and the continuous development of submarine exploration technology, a submarine exploration device gets more and more attention, wherein a pressure balance device in water is one of important research points. The underwater pressure balancing device is an important device of submarine detection equipment and is widely applied to submarines, underwater speed boats and the like. The underwater pressure balance device is required not only to be capable of realizing pressure balance at different depths, but also to be capable of being reused and stably working. Then, the existing pressure balancing device on the market has the problem that the existing pressure balancing device cannot be repeatedly used for a long time in a complex underwater pressure environment, and cannot meet the requirements of use and environmental protection. The magnetorheological fluid has the characteristics of variable rigidity and adjustable viscosity under the excitation of an external magnetic field. The invention provides an underwater pressure balancing device based on a magneto-rheological effect, which has the characteristics of stable work, reliable performance and long-term reuse.
Disclosure of Invention
The invention aims to provide an underwater pressure balancing device based on a magneto-rheological effect, which can solve the problems that the device needs to be suitable for underwater pressures at different depths and can be repeatedly used for a long time.
In order to effectively solve the technical problems, the invention is realized as follows: the device comprises an upper shell (1), a screw (2), a current controller (3), a protective sleeve (4), a lower shell (5), a bolt (6), a first nut (7), a piston rod (8), a second sealing ring (9), magnetorheological fluid (10), a magnet exciting coil (11), a power-on lead (12), a first sealing ring (13), a pressing plate (14), a rolling diaphragm (15), oil (16), a second nut (17), a middle shell (18), an inner shell (19), a third sealing ring (20) and a fourth sealing ring (21).
A layer of rolling diaphragm (15) is clamped between the upper shell (1) and the lower shell (5) and is fastened and connected through a screw (2), so that a shell of the device is formed;
the pressure balancing device is internally provided with a piston rod (8), an excitation coil (11), magnetorheological fluid (10), a second sealing ring (9), a third sealing ring (20), an inner shell (19), a current controller (3), a middle shell (18), a first sealing ring (13), a rolling diaphragm (15), a pressing plate (14), a fourth sealing ring (21), a second nut (17) and oil (16) from inside to outside in sequence;
the top of the piston rod (8) is sequentially provided with an inner shell (19), a middle shell (18), a first sealing ring (13), a rolling diaphragm (15), a pressing plate (14), a fourth sealing ring (21) and a second nut (17) from bottom to top, and the piston rod (8) is in threaded connection with the second nut (17) by using threads;
two excitation coils (11) are sequentially arranged in the middle of the piston rod (8) from bottom to top, and the excitation coils (11) are connected to a current controller (3) arranged on the inner wall of a middle shell (18) through an electrified lead (12) arranged in the piston rod (8);
the current controller (3) and the electrified conduction (12) are subjected to waterproof treatment;
the magnetic exciting coil (11) is externally provided with a protective sleeve (4) so as to isolate the magnetorheological fluid (10) in the inner shell (19);
magnetorheological fluid (10) is injected into the inner shell (19), the piston rod (8) firstly penetrates through the second sealing ring (9), and then the inner shell (19) is in threaded fit with the lower shell through the bolt (6) and the first nut (7);
the fourth sealing ring (21) is used for secondary sealing to prevent oil from entering;
the first sealing ring (13) is used for secondary sealing to prevent seawater from entering;
the third sealing ring (20) is used for secondary sealing to prevent seawater from entering and magnetorheological fluid from seeping out;
the second sealing ring (9) is used for secondary sealing to prevent seawater from entering and magnetorheological fluid from seeping out;
and oil (16) in the underwater pressure balancing device is filled into the device through the oil filling port.
The patent the underwater pressure balancing device based on the magneto-rheological effect has the positive effects that: based on the characteristics of high control precision, high response speed and long-term reuse of magnetorheological fluid, the traditional underwater pressure balancing device is improved, the underwater pressure balancing device based on the magnetorheological effect is designed, and the underwater pressure balancing device has the characteristics of long service life, quick response, strong adaptability to working environment, long-term reuse and the like, solves the problems of poor adaptability to the working environment, short service life and the like of the underwater pressure balancing device on the market, and improves the universality of the underwater pressure balancing device.
Drawings
Fig. 1 is a schematic diagram of an internal structure of an underwater pressure balancing device based on a magnetorheological effect.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
In figure 1, the underwater pressure balancing device based on the magneto-rheological effect mainly comprises an upper shell (1), a screw (2), a current controller (3), a protective sleeve (4), a lower shell (5), a bolt (6), a first nut (7), a piston rod (8), a second sealing ring (9), magneto-rheological fluid (10), an excitation coil (11), an electrified lead (12), a first sealing ring (13), a pressing plate (14), a rolling diaphragm (15), oil (16), a second nut (17), a middle shell (18), an inner shell (19), a third sealing ring (20) and a fourth sealing ring (21). A layer of rolling diaphragm (15) is clamped between the upper shell (1) and the lower shell (5) and is fastened and connected through a screw (2), so that a shell of the device is formed; the pressure balancing device is internally provided with a piston rod (8), an excitation coil (11), magnetorheological fluid (10), a second sealing ring (9), a third sealing ring (20), an inner shell (19), a current controller (3), a middle shell (18), a first sealing ring (13), a rolling diaphragm (15), a pressing plate (14), a fourth sealing ring (21), a second nut (17) and oil (16) from inside to outside in sequence; the top of the piston rod (8) is sequentially provided with an inner shell (19), a middle shell (18), a first sealing ring (13), a rolling diaphragm (15), a pressing plate (14), a fourth sealing ring (21) and a second nut (17) from bottom to top, and the piston rod (8) is in threaded connection with the second nut (17) by using threads; two excitation coils (11) are sequentially arranged in the middle of the piston rod (8) from bottom to top, and the excitation coils (11) are connected to a current controller (3) arranged on the inner wall of a middle shell (18) through an electrified lead (12) arranged in the piston rod (8); the current controller (3) and the electrified conduction (12) are subjected to waterproof treatment; the magnetic exciting coil (11) is externally provided with a protective sleeve (4) so as to isolate the magnetorheological fluid (10) in the inner shell (19); magnetorheological fluid (10) is injected into the inner shell (19), the piston rod (8) firstly penetrates through the second sealing ring (9), and then the inner shell (19) is in threaded fit with the lower shell through the bolt (6) and the first nut (7); the fourth sealing ring (21) is used for secondary sealing to prevent oil from entering; the first sealing ring (13) is used for secondary sealing to prevent seawater from entering; the third sealing ring (20) is used for secondary sealing to prevent seawater from entering and magnetorheological fluid from seeping out; the second sealing ring (9) is used for secondary sealing to prevent seawater from entering and magnetorheological fluid from seeping out; and oil (16) in the underwater pressure balancing device is filled into the device through the oil filling port.
The working principle of the specific implementation mode of the underwater pressure balancing device based on the magneto-rheological effect is as follows: the upper shell (1) and the lower shell (5) are separated by the rolling diaphragm (15), oil liquid (16) is filled in the upper shell (1) to generate oil pressure poil. The middle shell (18) and the inner shell (19) divide the lower shell (5) into three layers: the outermost layer is introduced with seawater to generate external water pressure psea(ii) a The middle layer is provided with a current controller (3); the innermost layer is provided with a piston rod (8) and a magneto-rheological system. Under the control of the current controller (3), the electrified conducting wire (12) and the excitation coil (11) act together to generate a magnetic field with certain intensity, magnetorheological fluid (10) in the distributed magnetic field space generates a magnetorheological effect, the viscosity is increased along with the increase of the magnetic field intensity, and Newton fluid is converted into Bingham fluid. After the device enters water, along with the increase of the depth, the piston rod (8) and the rolling diaphragm (15) are along with the external water pressure pseaThe piston rod (8) is subjected to magnetorheological damping force F opposite to the motion direction by continuously increasing and moving upwardsMR(the value of which can be controlled by the magnetic field strength), the volume of the compressed oil (16) is rapidly reduced, the oil pressure poilThe pressure is increased rapidly, so that the upper and lower pressures of the rolling diaphragm (15) are balanced. The force balance equation when the device reaches a stable state is as follows:
poilAe+mcg＝pseaAe+FMR
in the formula: p is a radical ofoilFor balancing the oil pressure in the device, AeIs the effective contact area of the membrane, mcIs the mass of the membrane system, pseaIs the seawater pressure; fMRIs a magneto-rheological damping force.
Claims (7)
1. The utility model provides an underwater pressure balancing device based on magnetic current becomes effect, the device comprises last casing (1), screw (2), current controller (3), protective sheath (4), lower casing (5), bolt (6), a nut (7), piston rod (8), No. two sealing washer (9), magnetorheological suspensions (10), excitation coil (11), circular telegram wire (12), a sealing washer (13), clamp plate (14), rolling diaphragm (15), fluid (16), No. two nut (17), middle casing (18), inner shell (19), No. three sealing washer (20), No. four sealing washer (21). A layer of rolling diaphragm (15) is clamped between the upper shell (1) and the lower shell (5) and is fastened and connected through a screw (2), so that a shell of the device is formed; the pressure balancing device is internally provided with a piston rod (8), an excitation coil (11), magnetorheological fluid (10), a second sealing ring (9), a third sealing ring (20), an inner shell (19), a current controller (3), a middle shell (18), a first sealing ring (13), a rolling diaphragm (15), a pressing plate (14), a fourth sealing ring (21), a second nut (17) and oil (16) from inside to outside in sequence; the top of the piston rod (8) is sequentially provided with an inner shell (19), a middle shell (18), a first sealing ring (13), a rolling diaphragm (15), a pressing plate (14), a fourth sealing ring (21) and a second nut (17) from bottom to top, and the piston rod (8) is in threaded connection with the second nut (17) by using threads; two excitation coils (11) are sequentially arranged in the middle of the piston rod (8) from bottom to top, and the excitation coils (11) are connected to a current controller (3) arranged on the inner wall of a middle shell (18) through an electrified lead (12) arranged in the piston rod (8); magnetorheological fluid (10) is injected into the inner shell (19), the piston rod (8) firstly penetrates through the second sealing ring (9), and then the inner shell (19) is in threaded fit with the lower shell through the bolt (6) and the first nut (7); and oil (16) in the underwater pressure balancing device is filled into the device through the oil filling port.
2. An underwater pressure balancing device based on magnetorheological effect as claimed in claim 1, wherein: the current controller (3) and the electrified conduction (12) are subjected to waterproof treatment.
3. An underwater pressure balancing device based on magnetorheological effect as claimed in claim 1, wherein: and a protective sleeve (4) is arranged outside the magnet exciting coil (11) so as to isolate the magnetorheological fluid (10) in the inner shell (19).
4. An underwater pressure balancing device based on magnetorheological effect as claimed in claim 1, wherein: no. four sealing washer (21) carry out the second grade and seal, prevent that fluid from getting into.
5. An underwater pressure balancing device based on magnetorheological effect as claimed in claim 1, wherein: the first sealing ring (13) is used for secondary sealing to prevent seawater from entering.
6. An underwater pressure balancing device based on magnetorheological effect as claimed in claim 1, wherein: the third sealing ring (20) is used for secondary sealing to prevent seawater from entering and magnetorheological fluid from seeping out.
7. An underwater pressure balancing device based on magnetorheological effect as claimed in claim 1, wherein: the second sealing ring (9) is used for secondary sealing to prevent seawater from entering and magnetorheological fluid from seeping out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172997.4A CN111232170A (en) | 2020-03-13 | 2020-03-13 | Underwater pressure balancing device based on magneto-rheological effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172997.4A CN111232170A (en) | 2020-03-13 | 2020-03-13 | Underwater pressure balancing device based on magneto-rheological effect |
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| CN111232170A true CN111232170A (en) | 2020-06-05 |
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| CN202010172997.4A Pending CN111232170A (en) | 2020-03-13 | 2020-03-13 | Underwater pressure balancing device based on magneto-rheological effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124183A (en) * | 2021-04-21 | 2021-07-16 | 浙江大学 | Novel water pressure proportional valve |
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2020
- 2020-03-13 CN CN202010172997.4A patent/CN111232170A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124183A (en) * | 2021-04-21 | 2021-07-16 | 浙江大学 | Novel water pressure proportional valve |
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